Specifications

Chapter 3 – Status Control Commands
Multi-Tech Systems, Inc. AT Commands for EDGE (E1) Modems (S000474A) 62
3.5 ATS18 Extended Call Release Report
Description: ATS18 controls the presentation of extended call release reports for circuit switched data calls.
Extended call release reports related to voice calls are controlled via AT+CEER.
The call release report is presented in numeric format and shows as follows:
+CAUSE: <locationID>:<reason>
If enabled the message will be reported every time a data call is released or fails to be
established.
Syntax: Read Command: ATS18?
Responses: <n>
OK
Write Command: ATS18=<n>
Responses: OK
ERROR
Parameters:
<n>
An odd number enables the presentation of the extended call release report. Any even
number disables this feature. This parameter can be stored with the AT&W command. It
can be displayed with the AT&V command. The default is 0.
0...255. Default = 0 (This is factory default value, will be restored to 0 with AT&F.
This value can be stored with AT&W.
This value can be displayed with AT&V.
<locationID>
Location ID as number code, see also <locationID> of AT+CEER.
Location IDs are listed in Section 3.4.1, Cause Location ID for the extended error report.
Each ID is related to another table that contains a list of <reason>s.
<reason>
Reason for last call release as number code (see also <reason> of AT+CEER).
<reason> numbers and the associated descriptions are listed in several tables, sorted
by different categories at AT+CEER. The tables can be found proceeding from the
Location IDs listed in Section 3.4.1, Cause Location ID for the extended error report.
Examples:
Example 1
ATS18=1 Enables the presentation of extended call release reports.
OK
ATD03012345678 Now, a mobile originated data call fails.
+CAUSE: 8:17 An extended error report is output, followed by the result code BUSY.
BUSY The Location ID 8 stated in Section 3.4.1 points to Section 3.4.4, with 17 = “User
busy”.
Example 2
ATS18=1 Enables the presentation of extended call release reports.
OK
ATD03012345678 Now, a mobile originated data call is set up.
CONNECT 9600/RLP
Hello,....
+++ Call ends after remote party hung up.
+CAUSE: 8:16 Normal call release is reported, followed by the result code NO CARRIER.
NO CARRIER The Location ID 8 stated in Section 3.4.1 points to Section 3.4.4, with 16 = “Normal
call clearing”.
Notes:
• This command is not PIN protected
• This command is supported in airplane mode